<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>MPI_Wtick</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<H1 id="MPI_Wtick">MPI_Wtick</H1>
Returns the resolution of MPI_Wtime 
<H2>Synopsis</H2>
<PRE>
</PRE>
<PRE>
double MPI_Wtick(void)
</PRE>

<P>
<H2>Return value</H2>
Time in seconds since an arbitrary time in the past.
<P>
<H2>Notes</H2>
This is intended to be a high-resolution, elapsed (or wall) clock.
See <tt>MPI_WTICK</tt> to determine the resolution of <tt>MPI_WTIME</tt>.
If the attribute <tt>MPI_WTIME_IS_GLOBAL</tt> is defined and true, then the
value is synchronized across all processes in <tt>MPI_COMM_WORLD</tt>.
<P>
<H2>Notes for Fortran</H2>
This is a function, declared as <tt>DOUBLE PRECISION MPI_WTIME()</tt> in Fortran.
<P>
<H2>See Also</H2>
 MPI_Wtick, MPI_Comm_get_attr, MPI_Attr_get
<br>
</BODY></HTML>
